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lab macromolecule

lab macromolecule - Benny Wong Pg 64 1 Distilled water 1...

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Benny Wong 9/10/09 Pg 64 1) Distilled water, 1 dropperful Pg 65 9) Tube 1 (glucose) – orange Tube 2 (negative control) – no change, blue Interpretation of Results Describe a positive Benedict’s test The solution should turn orange. Why are the limitations of this test? This test requires heat and some solutions can’t be heated due to the chance it may change chemical properties. Activity B: Starch What negative control should be used for this test? Water Pg 66 5) Tube 1 – Blue-black Tube 2 – Yellow (diluted brown) Interpretation of Results - A positive test indicates a dark blue color - The limitations include concentration and it can only be done with liquids. Activity C What monosaccharides will results from the hydrolysis of sucrose? Glucose and fructose What monosaccharide will result from the hydrolysis of starch? Glucose subunits Pg. 69 Benedict’s reagent – blue, orangish-blue, not applicable, blue, blue Dark blue, dark blue, dark red Interpretation of Results Explain the results you obtained using the Benedict’s test on the
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sucrose solution. Benedict’s test does not react with all simple sugars
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lab macromolecule - Benny Wong Pg 64 1 Distilled water 1...

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